Home / 82,279.13-123,418.69-19,949.63

Finding the Fourth Proportional to 82,279.13, 123,418.69 and 19,949.63

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Solution

The fourth proportional to 82,279.13, 123,418.69 and 19,949.63 is: 29,924.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,279.13 : 123,418.69 = 19,949.63 : x
  2. Step 2: Convert to fraction form
    82,279.13/123,418.69 = 19,949.63/x
  3. Step 3: Cross multiply
    82,279.13x = 123,418.69 × 19,949.63
  4. Step 4: Simplify right side
    82,279.13x = 2,462,156,533.62
  5. Step 5: Solve for x
    x = 2,462,156,533.62/82,279.13
  6. Step 6: Final answer
    x = 29,924.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.